HPMC YEGYPSUM

HPMC, kana Hydroxypropyl Methylcellulose, chinhu chakasiyana-siyana chinoshandiswa zvakanyanya muindasitiri yekuvaka. Imwe yeayo inonyanya kushandiswa ndeyekugadzira zvigadzirwa zvegypsum. Gypsum chicherwa chinongoitika chinowanzo shandiswa mukuvaka senge plaster uye drywall. HPMC inowanzowedzerwa kune zvigadzirwa zvegypsum kuti zvivandudze kushanda kwavo, kunyanya maererano nekushanda, kunamatira, uye kuchengetedza mvura.

Kune akawanda akasiyana marudzi ezvigadzirwa zvegypsum zvinogona kubatsirwa nekuwedzera kweHPMC. Izvi zvinosanganisira:

Plaster: Plaster chinhu chakajairika chekuvaka chinogadzirwa kubva gypsum poda nemvura. HPMC inogona kuwedzerwa kune plaster kuti ivandudze kushanda kwayo uye kunamatira. Inogonawo kubatsira kuderedza shrinkage uye kuputika panguva yekuoma.

Joint compound: Joint compound imhando yechigadzirwa chegypsum chinoshandiswa kuzadza maburi pakati pemashizha ewallwall. HPMC inogona kuwedzerwa kune yakabatana komboni kuti ivandudze kushanda kwayo uye kunamatira. Inogonawo kubatsira kuderedza shrinkage uye kuputika.

Komisheni yekuzvimisikidza: Mishonga yekuzvimisa-yega inoshandiswa kuyera uriri husina kuenzana kana kugadzira nzvimbo yakatsetseka yezvimwe zvinhu zvepasi. HPMC inogona kuwedzerwa kune yega-leveling makomisheni kuvandudza kushanda kwavo uye kuchengetedza mvura. Inogonawo kubatsira kuderedza shrinkage uye kuputika panguva yekuoma.

Gypsum board: Gypsum board, inozivikanwawo sekuti drywall, chinhu chakajairika chekuvaka chinogadzirwa kubva gypsum plaster chakaiswa pakati pemapepa maviri. HPMC inogona kuwedzerwa kune gypsum plaster kuti ivandudze kushanda kwayo uye kunamatira.

Iwo chaiwo zvimiro zveHPMC zvinogona kusiyana zvichienderana nechigadzirwa chaicho uye mugadziri, asi kazhinji, ine zvinotevera maitiro:

Kuchengetedzwa kwemvura kwakakwirira: HPMC chinhu chinonzi hydrophilic, zvinoreva kuti ine hukama hwakasimba hwemvura. Iyi pfuma inobatsira kuvandudza kushanda kwezvigadzirwa zvegypsum, sezvo inobatsira kuchengetedza musanganiswa wakanyorova uye nyore kupararira.

Kugona kwakanaka kwekugadzira firimu: HPMC inogona kugadzira firimu rakatetepa pamusoro pechigadzirwa chegypsum pachiri kuoma, icho chinobatsira kuvandudza simba rayo remuchina uye kusimba.

Kunatsiridza kunamatira: HPMC inogona kuvandudza kunamatira kweiyo gypsum chigadzirwa kune iri pasi pe substrate, ichibatsira kugadzira yakasimba, yakasimba nzvimbo.

Yakaderedzwa shrinkage uye kuputika: HPMC inogona kubatsira kuderedza kuwanda kwe shrinkage uye kuputika kunoitika panguva yekuomeswa, izvo zvinogona kutungamirira kune yakawanda kunyange uye yakatsetseka pamusoro.

Isiri-chepfu uye ine hushamwari kwezvakatipoteredza: HPMC isiri-chepfu, ine hushamwari zvinhu zvakachengetedzeka kuti ishandiswe mukuvaka zvikumbiro.

Paunenge uchishandisa HPMC mune zvigadzirwa zvegypsum, zvakakosha kutevedzera mirairo yemugadziri nemazvo. Musanganiswa unofanirwa kugadzirirwa maererano nehuwandu hwemvura-ku-upfu hunokurudzirwa, uye inofanira kusanganiswa zvakakwana kuti ive nechokwadi chokuti HPMC inoparadzirwa zvakaenzana mumusanganiswa wose.

Kana chigadzirwa chegypsum chaiswa pamusoro, chinofanira kupfava uye kuenzaniswa uchishandisa trowel kana chimwe chishandiso. Zvakakosha kushanda nokukurumidza, sezvo chigadzirwa chichatanga kuisa mukati mechinguva chiduku.

Mushure mokunge chigadzirwa chacho chashandiswa, chinofanira kusara kuti chiome kwenguva yakakurudzirwa nguva isati yasvika chero basa rekuwedzera rinoitwa pamusoro. Izvi zvichabatsira kuve nechokwadi kuti nzvimbo yacho yapora zvakakwana uye yakagadzirira kushandiswa.

Pakazara, HPMC chinhu chakakosha mukugadzira zvigadzirwa zvegypsum. Hunhu hwayo hwakasiyana hunobatsira kuvandudza kushanda kwezvinhu izvi, zvichiita kuti zvive nyore kushanda nazvo uye zvakanyanya kusimba nekufamba kwenguva. Nekushandisa zvigadzirwa zvegypsum zvine HPMC, nyanzvi dzekuvaka dzinogona kugadzira dzakatsetseka, nhanho nzvimbo dzakakodzera kune dzakasiyana siyana dzekushandisa.